(CNN) -- Real estate mogul and television celebrity Donald Trump, who generated a media publicity blitz by saying he might run for president in 2012, announced Monday that he will instead remain a businessman.

"After considerable deliberation and reflection, I have decided not to pursue the office of the presidency," Trump said in a statement.

With his typical bravado, Trump maintained that he would have won the Republican primary and the general election, but recognized that "running for public office cannot be done half-heartedly."

Obama previously had provided a shorter version that serves as the public record in Hawaii, but amid the media glare on the issue raised in part by Trump's repeated questioning of whether the so-called long version of the document existed, the president released it last month.